Gas-burner for furnaces



M. J. PICKETT & L. EWING.

GAS BURNER FOR FURNAGES.

No. 549,013. Patented Oct. 29, 1895.

/v 1 1/ III/7| l .xZ/forney ANDREW KGRANAM. PHUTO-UNQWASHINETUN. l7 I:v

UNITED STATES PATENT OFFICE.

MORRIS J. PIOK ETT'AND LORIN EWING, OF ANDERSON, INDIANA.

GAS-BURNER FOR FURNACES.

SPECIFICATION forming part of Letters Patent No. 549,013, dated October29, 1895.

Application filed June 2, 1893. Renewed $eptemhe1', 3, 18 95. Serial No.561,358. (No model.)

To all whom, it may concern:

Be it known that we, MORRIS J. PIOKETT and LORIN EWING, citizens of theUnited States, residing at Anderson, in the county of Madison and Stateof Indiana, have invented certain new and useful Improvements in Gas-Burners for Furnaces; and we do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersof reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a side view partly broken away. Fig. 2 is afront View; and Fig. 3 is a horizontal section taken on line x 00, Fig.1.

This invention has relation to certain new and useful improvements ingas-burners for furnaces, the object being to provide an improved burnerof this character wherein the gas is mixed with air and steam at thepoint of combustion; and the invention consists in the novelconstruction-and combination of parts, all as hereinafter described, andpointed out in the claim.

The burner, as shown in the accompanying drawings, consists of twobranchesA A, connected by the transverse arm B, to which the gas issupplied by a T'-pipe 0, having a connection with a gas-main or othersource of supply. (Not shown.) At the end portion of each branch is a TD, to one arm a of which the branch A or A is connected, the arm I)having a nipple 12 secured therein, which forms the gas-escape, and thearm 0 having a connection with a steam-supply pipe E. Sup ported uponsaid T around the nipple b is a mixing chamber or cylinder F, open atboth ends and held in place by the screw-bolts d or by other suitablemeans. Projecting up through the T and nipple into said cylider orchamber and terminating just short of the forward end thereof is a smalljet-pipe G, which at its lower end connects with the steam-pipe E. Saidjet-pipe is of sufficiently small diameter to. leave an annular openingbetween it and the wall of the nipple, so that the gas may escape freelytherethrough. In

each arm or branch A A is a globe-valve H, by means of which the supplyof gas to the burner is controlled. The steam-pipe E is also formed intwo branches, one of which leads to each mixer and is connected theretoby the Ts e c, said branches being united by the transverse arm E, towhich steam is supplied by means of a T E, having a connection E withthe boiler. (Not shown.) The Ts e e are each supplied with a globe-valveI, by means of which the supply of steam to the mixers is controlled.

The two branches A A are shown as being parallel with each other andwith the branches of the steam-pipe E, the mixers projecting at rightangles therefrom,so that the latter may be readily introduced into thefurnace.

The operation is as follows: The gas enters the mixing-chamber from thenipple b and is mixed with air drawn in through the open end of thecylinder. In passing through the mixer the gas and air become highlyheated, and, coming in contact with the jet of steam from the pipe G,are projected into the furnace with great velocity, becoming ignited andproducing an intense heat, the point of combustion being at theextremity of the jetpipe from which the flames are projected into i thefurnace.

'The amount and intensity of the fire and the length of flame can beregulated by turning the valves to admit more or less gas or steam.

The velocity and quantity of air supplied at the point of combustion isregulated by the steam-jet.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

The herein decribed gas burner, comprising the two branches A, A, thetransverse connecting arm B, its supply T O, a T D at the end portionof-each branch A, A, a nipple b secured in one arm of each of said Tsand forming a gas escape, the steam pipe E also having two branchesunited by thearm E which is provided with a steam supply E, jet pipesG'connected at one end with the respective branches of the said steampipe, and

at the other end extending up through said In testimony whereof we affixour signanipple, an open-ended cylinder F supported tures in presence ofWitnesses.

around each of said nipples and projecting a MORRIS J. PIOKETT. shortdistance beyond the extremity of the LORIN EWING. 5 jet pipe, and meansfor controlling the supply Vituesses:

of gas and steam, said gas and steam pipes JAMES WELLINGTON, beingarranged in the form of a rectangle, D. O. CHIPMAN, substantially asspecified. \VM. J. NORTON.

